package com.xiamaoguai.netty.http;

import io.netty.bootstrap.ServerBootstrap;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.SocketChannel;
import io.netty.channel.socket.nio.NioServerSocketChannel;
import io.netty.handler.codec.http.HttpObjectAggregator;
import io.netty.handler.codec.http.HttpRequestDecoder;
import io.netty.handler.codec.http.HttpResponseEncoder;
import io.netty.handler.stream.ChunkedWriteHandler;

public class HttpFileServer {

	public void run(final int port, final String url) throws Exception {
		EventLoopGroup bossGroup = new NioEventLoopGroup();
		EventLoopGroup workGroup = new NioEventLoopGroup();
		try {
			ServerBootstrap bootstrap = new ServerBootstrap();
			bootstrap.group(bossGroup, workGroup).channel(NioServerSocketChannel.class)
					.childHandler(new ChannelInitializer<SocketChannel>() {

						@Override
						protected void initChannel(SocketChannel ch) throws Exception {
							ch.pipeline().addLast("http-decoder", new HttpRequestDecoder());
							ch.pipeline().addLast("http-aggregator", new HttpObjectAggregator(65536));
							ch.pipeline().addLast("http-encoder", new HttpResponseEncoder());
							ch.pipeline().addLast("http-chunked", new ChunkedWriteHandler());
							ch.pipeline().addLast("fileServerHandler", new HttpFileServerHandler(url));
						}

					});

			ChannelFuture future = bootstrap.bind(port).sync();
			future.channel().closeFuture().sync();

		} finally {
			bossGroup.shutdownGracefully();
			workGroup.shutdownGracefully();

		}
	}
	
	
	public static void main(String[] args) throws Exception{
		int port = 8080;
		new HttpFileServer().run(port, DefaultConstants.DEFAULT_URL);
	}

}
